High 8.8Published Jun 25, 2026

CVE-2026-53200KVM: arm64: nv: Fix handling of XN[0] when !FEAT_XNX

Updated under an hour ago (Oct 27, 2026, 3:00 AM ET)

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Exploited in the last 30 days

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: nv: Fix handling of XN[0] when !FEAT_XNX XN has already been extracted from its bitfield position so using FIELD_PREP() on the mask that clears XN[0] is completely broken, having the effect of unconditionally granting execute permissions... Fix the obvious mistake by manipulating the right bit.

CVSS: 8.8 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Analyzed
Record last updated: Aug 5, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from d93febe2ed2e0491af9d47f0ee6d4b01918877f4 before b95976c2ea446044553a5f469c0bae13553d75ab; from d93febe2ed2e0491af9d47f0ee6d4b01918877f4 before 49b32ddb87a3a109afecea89e55d70f73956b8bc	CNA record
linux linux_kernel linux:linux_kernel	from 6.19 before 7.0.13; 7.1; 7.1; 7.1; 7.1; 7.1; 7.1	NVD

References

References

https://git.kernel.org/stable/c/b95976c2ea446044553a5f469c0bae13553d75ab	patch
https://git.kernel.org/stable/c/49b32ddb87a3a109afecea89e55d70f73956b8bc	patch

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.